Comparison of inorganic solute accumulation in shoots, radicles and cotyledons of<i>Vicia cracca</i>during the seedling stage under NaCl stress

Ying, Wang; Yang, Jiang-Yan; Jiang, Shicheng; Tian, Yu; Sun, Haixuan; Wang, Minling; Li, Guangdi; Zhou, Daowei

doi:10.1080/00380768.2011.647606

Cited by 4 publications

(2 citation statements)

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“…The higher tolerance of cotyledon to salt-alkali stress may be an adaptive strategy of this species to cope with adverse environmental factors and guarantee the following of true leaf normal growth. Studies carried out by Wang et al (2012) also indicated that cotyledons of Vicia cracca were more tolerant to NaCl stress than shoots. Moreover, much stronger inhibition in cotyledons and true leaves weights were detected under alkalinity stress, potentially due to the destructive effect of a high pH level, which directly led to ion imbalance and metabolic disorders (Yang et al, 2007; Lin et al, 2016).…”

Section: Discussionmentioning

confidence: 96%

Physiological Adaptive Strategies of Oil Seed Crop Ricinus communis Early Seedlings (Cotyledon vs. True Leaf) Under Salt and Alkali Stresses: From the Growth, Photosynthesis and Chlorophyll Fluorescence

et al. 2019

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Ricinus communis is an important energy crop and is considered as one of the most potential plants for salt-alkali soil improvement in Northeast China. Early seedling stage (such as the cotyledon expansion stage) is always a vulnerable stage but plays a vital role in plant establishment, especially under stress conditions. However, little information exists concerning the function of cotyledon and the relationship between cotyledon and true leaf in the adaptation to salt stress and alkali stress of this species. Here, Ricinus communis seedlings were treated with varying (40, 80 and 120 mM) salinity (NaCl) and alkalinity (NaHCO3), growth, photosynthesis, and chlorophyll fluorescence of cotyledons and true leaves were measured. The results showed that the biomass, photosynthetic parameters, and the qp value of both cotyledons and true leaves decreased with increasing salt-alkali stress, and the decrease in biomass, gs and Tr, of true leaves were much greater than that of cotyledons. Salt-alkali stress only reduced photosynthetic pigments and ΦPSII in cotyledons, but did not affect those in true leaves. Additionally, the Fv/Fm and NPQ between cotyledons and true leaves showed different trends in salinity and alkalinity. The results suggested that alkali stress could cause much more damage to the castor bean seedlings, and different physiological responses and adaptive strategies are found in cotyledons and true leaves under salt-alkali stress. This study will help us develop a better understanding of the adaptation mechanisms of cotyledon and true leaf during early seedling stage of castor bean plant, and also provide new insights into the function of cotyledon in Ricinus communis under salt-alkali stress conditions.

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Section: Discussionmentioning

confidence: 96%

Physiological Adaptive Strategies of Oil Seed Crop Ricinus communis Early Seedlings (Cotyledon vs. True Leaf) Under Salt and Alkali Stresses: From the Growth, Photosynthesis and Chlorophyll Fluorescence

et al. 2019

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“…The organic solutes FP, SS and GB contents in plant usually have been closely related to osmotic adjustment under drought stress (Ma et al, 2012;Silva et al, 2010). As small molecule osmolytes, they can not only prevent intracellular macromolecular substances from dehydrating and play important role in the process of hydroxyl radical scavenging during dry period (Wang et al, 2012;Yoshiba, Kiyosue, Nakashima, Yamaguchishinozaki, & Shinozaki, 1997;Zrig et al, 2015), but also can decrease the water potential, participate in osmotic adjustment, and maintain the stability of protein under drought stress (Oliveira, Alencar, Prisco, & Gomes-Filho, 2011;Shao, Shan, & Li, 2006).…”

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confidence: 99%

The features of main osmolytes, silicon and their coupling effects in improving drought resistance of the typical xerophytes in the desert areas of Northwest China

et al. 2020

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Succulent xerophytes (SX) and less succulent xerophytes (LSX) are able to accumulate inorganic ions and synthesize organic solutes (OS) to adapt to drought stress. Silicon (Si) is one of the five beneficial elements for plants and its importance to SX has been confirmed. In the study, the features of main osmolytes and Si were studied in SX and LSX species, and the coupling effects of inorganic ions were investigated in the SX H. ammodendron and LSX C. korshinskii. Results showed that SX and LSX had the common adaptive characteristic of preferentially accumulating inorganic ions rather than OS for drought resistance, and the total amount of osmotica in SX was 2.36-times higher than that in the LSX. The greatest contribution to drought resistance was K + (29.7%), the lowest was Na + (2.4%) in LSX, while the greatest contribution was Na + (41.7%), the total OS was the lowest (2.4%) in SX. The coupling effects of inorganic ions played vital important roles in drought resistance of the SX and LSX. The better coupling ratios of NaCl, NH 4 NO 3 , CaCl 2 , MgCl 2 and Na 2 SiO 3 in

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Salt-adaptive strategies in oil seed crop Ricinus communis early seedlings (cotyledon vs. true leaf) revealed from proteomics analysis

Wang

Peng

Salvato

et al. 2019

Ecotoxicology and Environmental Safety

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Comparison of inorganic solute accumulation in shoots, radicles and cotyledons ofVicia craccaduring the seedling stage under NaCl stress

Cited by 4 publications

References 42 publications

Physiological Adaptive Strategies of Oil Seed Crop Ricinus communis Early Seedlings (Cotyledon vs. True Leaf) Under Salt and Alkali Stresses: From the Growth, Photosynthesis and Chlorophyll Fluorescence

Physiological Adaptive Strategies of Oil Seed Crop Ricinus communis Early Seedlings (Cotyledon vs. True Leaf) Under Salt and Alkali Stresses: From the Growth, Photosynthesis and Chlorophyll Fluorescence

The features of main osmolytes, silicon and their coupling effects in improving drought resistance of the typical xerophytes in the desert areas of Northwest China

Salt-adaptive strategies in oil seed crop Ricinus communis early seedlings (cotyledon vs. true leaf) revealed from proteomics analysis

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